Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content Making Your Tax Bracket Work Have you explored all your options when it comes to managing your taxable income? What the New Tax Bill Means for You What does the Tax Reform and Jobs Act mean for you? Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.